WQ0036881_Monitoring (Report)_20200507 (2)

Table 6: Surface Water Data Summary
October 2019 Semiannual Event
Corrective Action Monitoring Report
Former Clifton Precision Site
Murphy, North Carolina
DSample escription ,�����
1,1,1-Trichloroethane 200
ND
ND
ND
ND
ND
ND
1,1,2-Trichloro-1,2,2-trifluoroethane NE
ND
ND
ND
ND
ND
ND
1,1-Dichloroethane NE
ND
ND
ND
ND
ND
ND
1,1-Dichloroethene 7
ND
ND
ND
ND
ND
ND
1,4-Dichlorobenzene 75
ND
ND
ND
ND
ND
ND
2-Butanone NE
ND
ND
ND
ND
ND
ND
Acetone NE
ND
ND
ND
ND
ND
ND
Bromodichloromethane 80*
ND
ND
ND
ND
ND
ND
Bromomethane NE
ND
ND
ND
ND
ND
ND
Carbon disulfide NE
ND
ND
ND
ND
ND
ND
Chloroform 80*
ND
ND
ND
ND
ND
ND
Chloromethane NE
ND
ND
ND
ND
ND
ND
cis-1,2-Dichloroethene 70
ND
ND
ND
ND
ND
ND
Dichlorodifluoromethane CFC-12) NE
ND
ND
ND
ND
ND
ND
Methyl tert-butyl ether NE
ND
ND
ND
ND
ND
ND
Methylene Chloride 5
ND
ND
ND
ND
ND
ND
Tetrachloroethene 5
ND
ND
ND
ND
ND
ND
Toluene 1,000
ND
ND
ND
ND
ND
ND
trans-1,2-Dichloroethene 100
ND
ND
ND
ND
ND
ND
Trichloroethene 5
ND
ND
ND
ND
ND
ND
Vinyl chloride 2
1 ND
I ND
I ND
I ND
I ND
I ND
ug/L - Micrograms per liter. * - Total trihalomethanes (chloroform + bromodichloromethane + dibromochloromethane + bromoform).
MCL - Federal Maximum Contaminant Level. B - This compound was also detected in a corresponding method blank or trip blank at a reportable level.
NE - MCL not established. J - Estimated result, result is less than the RL.
ND - Not detected, result is below reporting limit (RL). Samples analyzed for 49 volatile organic compounds (VOCs) by Method 826013.
INS - Not Sampled Compounds listed in this table are the VOCs reported above the RL in any sample reported during the RCRA Facility
Investigation or subsequent testing.
Bold indicates the detected concentration was greater than the MCL.
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Table 7: Private Well and Spring Data Summary
October 2019 Semiannual Event
Corrective Action Monitoring Report
Former Clifton Precision Site
Murphy, North Carolina
Description
Sample Date
1,1,1-Trichloroethane 200
ND
ND
1,1,2-Trichloro-1,2,2-trifluoroethane NE
ND
ND
1,1-Dichloroethane NE
ND
ND
1,1-Dichloroethene 7
ND
ND
1,4-Dichlorobenzene 75
ND
ND
2-Butanone NE
ND
ND
Acetone NE
ND
ND
Bromodichloromethane 80*
ND
ND
Carbon disulfide NE
ND
ND
Chloroform 80*
ND
ND
Chloromethane NE
ND
ND
cis-1,2-Dichloroethene 70
ND
ND
Dichlorodifluoromethane CFC-12 NE
ND
ND
Methyl tert-butyl ether NE
ND
ND
Methylene Chloride 5
ND
ND
Tetrachloroethene 5
ND
ND
Toluene 1,000
ND
ND
trans-1,2-Dichloroethene 100
ND
ND
Trichloroethene 5
ND
1.2
Vinyl chloride 2
1 ND
IND
pg/L - Micrograms per liter. * - Total trihalomethanes (chloroform + bromodichloromethane + dibromochloromethane + bromoform).
MCL - Federal Maximum Contaminant Level. B - This compound was also detected in a corresponding method blank or trip blank at a reportable level.
NE - MCL not established. J - Estimated result, result is less than the RL.
ND - Not detected, result is below reporting limit (RL) Samples analyzed for 49 volatile organic compounds (VOCs) by Method 8260B.
INS - Not Sampled Compounds listed in this table are the VOCs reported above the RL in any sample reported during the RCRA Facility Investigation or subsequent testing.
Bold indicates the detected concentration was greater than the MCL.
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Table 8: Quality Assurance/Quality Control Data Summary
October 2019 Semiannual Event
Corrective Action Monitoring Report
Former Clifton Precision Site
Murphy, North Carolina
Sample Codel
MW-32
I DUP-1
DUP-2
MW-45
DUP-3
MW-42
DUP-4
Sample Date
1,1,1-Trichloroethane 200
19
16
hW-113
2.4
2.4
ND
ND
ND
ND
1,1,2-Trichloro-1,2,2-trifluoroethane NE
18
17
1.8
1.9
ND
ND
ND
ND
1,1-Dichloroethane NE
9.3
6.4
ND
ND
ND
ND
ND
ND
1,1-Dichloroethene 7
27
20
1.2
1.3
ND
ND
ND
ND
1,4-Dichlorobenzene 75
ND
ND
ND
ND
ND
ND
ND
ND
2-Butanone NE
ND
ND
ND
ND
ND
ND
ND
ND
Acetone NE
ND
ND
ND
ND
ND
ND
ND
ND
Bromodichloromethane 80'
ND
ND
ND
ND
ND
ND
ND
ND
Carbon disulfide NE
ND
ND
ND
ND
ND
ND
ND
ND
Carbon Tetrachloride 5
ND
ND
ND
ND
ND
ND
ND
ND
Chloroform 80'
ND
1.5
ND
ND
ND
ND
ND
ND
Chloromethane NE
ND
ND
ND
ND
ND
ND
ND
ND
cis-1,2-Dichloroethene 70
32
26
2.5
2.4
ND
ND
ND
ND
Dichlorodifluoromethane (CFC-12) NE
ND
ND
ND
ND
ND
ND
ND
ND
Methyl tert-but I ether NE
ND
ND
ND
ND
ND
ND
ND
ND
Methylene Chloride 5
ND
ND
ND
ND
ND
ND
ND
ND
Tetrachloroethene 5
22
18
1.1
1.1
ND
ND
ND
ND
Toluene 1,000
ND
ND
ND
ND
ND
ND
ND
ND
trans-1,2-Dichloroethene 100
ND
ND
ND
ND
ND
ND
ND
ND
Trichloroethene 5
320
230 E
29
30
3.2
3.0
ND
ND
Vinyl chloride 2
13
9.2
ND
ND
ND
ND
ND
ND
pg/L - Micrograms per liter.
' - Total trihalomethanes (chloroform + bromodichloromethane + dibromochloromethane + bromofonm).
MCL - Federal Maximum Contaminant Level.
B - This compound was also detected in a corresponding method blank or trip blank at a reportable level.
NE - MCL not established.
J - Estimated result, result is less than the RL.
ND - Not detected, result is below reporting limit (RL). Samples analyzed for 49 volatile organic compounds (VOCs) by Method 826013.
PWR - Partially weathered rock
Compounds listed in this table are the VOCs reported above the RL in any sample reported during the RCRA Facility
E - Result exceeded calibration range.
Investigation or subsequent testing.
Bold indicates the detected concentration was greater than the MCL.
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Table 9: Groundwater Recovery Data Summary
October 2019 Semiannual Event
Corrective Action Monitoring Report
Former Clifton Precision Site
Murphy, North Carolina
Recovery Well
MonthNear
November 2018
Total Gallons
74,736
RW-3
Days jAverage Flowl
Remarks
30 1.73
Total Gallons
1,026,000
RW-4
D. s
30 23.75
emarks
December 2018
55,354
31 1.24
1,032,077
31
23.12
January2019
56,246
31 1.26
1,017,792
31
22.80
February 2019
28,627
28 0.71
924,538
28
22.93
March 2019
27,677
31 0.62
999,490
31
22.39
April 2019
28,944
30 0.67
943,920
30
21.85
May 2019
32,451
31 0.73
950,048
31
21.28
June 2019
28,553
30 0.66
908,806
30
21.04
July 2019
35,235
31 0.79
933,952
31
20.92
August 2019
38,852
31 0.87
907,853
31
20.34
September 2019
39,450
30 0.91
856,610
30
19.83
October 2019
Recovery Well
MonthNear
November 2018
35,390
Total Gallons
19,008
31 0.79
RW-5
Day jAverage Flowl
Operasted .•
30 0.44
Remarks
936,533 31 20.98
December 2018
16,517
31 0.37
January2019
24,106
31 0.54
February 2019
16,531
28 0.41
March 2019
17,856
31 0.40
April 2019
16,848
30 0.39
May 2019
17,570
31 0.39
June 2019
16,761
30 0.39
July 2019
17,487
31 0.39
August 2019
17,457
31 0.39
September 2019
16,743
30 0.39
October 2019
17,594
31 0.39
gpm - gallons per minute
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